I don't think Liao Shuishan knows about it yet, but obviously he already knows that the whole city is not far from Xiamen. For ordinary people, what happens there is unknown on Xiamen's side, mainly because he doesn't care about it.
In fact, the business circle is much closer. Perhaps what happened in Shanghai is far away. A circle naturally knows something more or less. Every circle has its own differences. There are no opportunities for contacts. Of course, it will not know.
For example, I used to do the same thing before. I would naturally know very quickly what happened on the roads in Xiamen or the whole city....